Results 211 to 220 of about 3,363 (242)

Systematics of Pappobolus (Asteraceae-Heliantheae)

Systematic Botany Monographs, 1992
Abstract Chemical constituents from capitate glandular trichomes were analyzed for 33 of the 38 species of Pappobolus. In total, 35 HPLC peaks were detected, 30 of which could be tentatively assigned to known compounds of the sesquiterpene lactone and benzofuran type.
Otmar Spring, Jose L. Panero, Edward E. Schilling   +2 more
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The genusBlepharispermum (Asteraceae, Heliantheae)

Plant Systematics and Evolution, 1992
The palaeotropic genusBlepharispermum (Asteraceae, Heliantheae) is revised for the first time. Fifteen species from Africa, the Arabian Peninsula, Madagascar, India, and Ceylon are recognized. Two new species are described, viz.B. arcuatum andB. canescens. Aspects of the systematic position and morphology of the genus are discussed.
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Taxonomy ofNeurolaena (Asteraceae-Heliantheae)

Plant Systematics and Evolution, 1982
A taxonomic treatment of the tropical genusNeurolaena (tribeHeliantheae, subtribeGalinsoginae) is rendered. Ten species are recognized: the widespread, annual, weedy,N. lobata and nine relatively rare, relictual, shrubby or small tree species, mostly restricted to southern Mexico and Central America.
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Systematics of Spilanthes (Compositae: Heliantheae)

Systematic Botany, 1981
Spilanthes is widespread throughout the New and Old World tropics. Morphological and chromosomal evidence supports separation of the genus into two genera, Spilanthes and Acmella, which can be distinguished by at least eight morpho- logical characters and by distinctive basic chromosome numbers.
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Flavonoids of Heliantheae s.l.

2001
The tribe Heliantheae is one of the largest and most morphologically variable of Asteraceae. This size and complexity has led to two different subtribal classifications in recent years (Robinson, 1981; Stuessy, 1977), which in turn have stimulated detailed morphological cladistic analyses and discussions of the entire tribe (Karis, 1993b; Karis and ...
Bruce A. Bohm, Tod F. Stuessy
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Coeligena helianthea

Coeligena helianthea (Lesson, 1839) Distribution Icononzo Notes (co CUMV 5009)
Parra-Hernández, Ronald M, Molina-Martínez, Yair G   +1 more
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THE COMPOSITAE OF THE GUIANAS .1. HELIANTHEAE (HELIANTHEAE, TAGETEAE, COREOPSIDEAE)

1991
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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TAXONOMY OF TETRAGONOTHECA ( ASTERACEAE-HELIANTHEAE)

1980
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Turner, B. L. (Billie Lee), Dawson, Deborah   +1 more
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TAXONOMY OF BEBBIA (COMPOSITAE: HELIANTHEAE)

1977
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Revision of Jaegeria (Compositae-Heliantheae)

Brittonia, 1968
The genusJaegeria consists of a diploid-polyploid complex of eight species found in moist habitats from Mexico to South America. The distributions, habitats, generic affinities, and tribal placement are discussed. Chromosome numbers were determined for all species exceptJ. axillaris, which is known only from Colombia.J. glabra andJ.
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